Core Points - The Xi'an to Yan'an High-Speed Railway (referred to as Xi-Yan High-Speed Railway) has officially transitioned from the joint debugging and testing phase to the trial operation phase as of November 17, marking a significant milestone for the revolutionary area in northern Shaanxi [1][2] - Once operational, the travel time between Xi'an and Yan'an will be reduced from two and a half hours to approximately one hour [1] - The trial operation will adhere to actual operational standards, including testing train operation parameters, fault simulation, emergency rescue drills, and scheduled train operation tests to ensure readiness for official service [1] Technical Details - The joint debugging and testing lasted 64 days, with nearly 400 test trains operated, collecting thousands of data points on track geometry, contact network voltage, and signal response speed [2] - The Xi-Yan High-Speed Railway is notable for being the first high-speed railway in Northwest China to achieve full public 5G coverage, enhancing the travel experience with seamless internet access [2] - Innovative construction techniques were employed to address the complex terrain of the Loess Plateau, including the use of combined towers to enhance equipment stability [2]

Core Points - The Xi'an to Yan'an high-speed railway has officially entered the trial operation phase, marking a significant step towards its full opening [1][2] - The railway spans 299.8 kilometers with a design speed of 350 kilometers per hour, featuring a high bridge-tunnel ratio of 91% due to complex geological conditions [4] Group 1: Trial Operation Details - The trial operation phase involves comprehensive testing of various subsystems and overall system reliability under simulated operational conditions, expected to last for at least one month [1] - Prior to this phase, the railway underwent 64 days of joint debugging and testing, with nearly 400 test trains operated to collect extensive data on track geometry, contact network voltage, and signal response speed [2] Group 2: Construction and Technological Innovations - The railway is the first high-speed line in Northwest China to achieve full 5G coverage, utilizing innovative combined tower designs to enhance equipment stability [4] - The dynamic TQI (Track Quality Index) average value of the railway is 1.33, significantly lower than the operational standard of 3, indicating superior track smoothness and stability [2] Group 3: Economic and Social Impact - Once operational, the travel time from Xi'an to Yan'an will be reduced from two and a half hours to approximately one hour, enhancing the regional connectivity and supporting rural revitalization in the revolutionary areas of Shaanxi province [4]